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WorksheetsElectricity
Total questions: 81
Worksheet time: 2hrs 29mins
Name
Class
Date
1.
Which best describes a simple series circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from the switch.
c)
Electricity flows along many pathways.
d)
The flow of electricity comes from the light bulb.
2.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will get brighter.
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
3.
Why can you get a shock if you touch a metal doorknob after walking across a wool carpet?
a)
You have gained electrons; the doorknob has no electrons.
b)
You have gained neutrons; the doorknob has fewer electrons.
c)
You have lost electrons; the doorknob has many electrons.
d)
You have gained electrons; the doorknob has many electrons.
4.
Why are metals useful for making electrical wire?
a)
Metals do not bend.
b)
Metals hold much heat.
c)
Metals are insulators.
d)
Metals are conductors.
5.
Which best describes a parallel circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from more than one source.
c)
Electricity flows along more than one pathway.
d)
The flow of electricity comes from more than 1 load.
6.
The picture shows an electrical circuit. This circuit is a series circuit because:
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current is divided between the three light bulbs.
7.
What is a circuit?
a)
A pathway that electricity flows in. It has a load, wire, and a taco
b)
A pathway that protons flow in. It has a load, wire, and a power source.
c)
A pathway that electricity flows in. It has a load, wire, and a power source.
d)
A pathway that electricity flows in. It has a load and wire.
8.
Electric current that flows in only one direction.
a)
Voltage
b)
Direct Current
c)
Alternating Current
d)
Series Circuit
9.
Electric current that reverses its direction of flow in a regular pattern
a)
Voltage
b)
Direct Current
c)
Alternating Current
d)
Parallel Circuit
10.
The flow/movement of electric charges
a)
Voltage
b)
Resistance
c)
Current
d)
Circuit
11.
This is related to the force that causes electric charges to flow
a)
Voltage
b)
Current
c)
Resistance
d)
Circuit
12.
A closed path that electric current follows
a)
Voltage
b)
Current
c)
Resistance
d)
Circuit
13.
The tendency for a material to oppose the flow of electrons, changing electrical energy into thermal energy and light.
a)
Voltage
b)
Current
c)
Resistance
d)
Circuit
14.
According to this law, the current in a circuit equals the voltage difference divided by the resistance.
a)
Law of Conservation of Energy
b)
Ohm's Law
c)
Law of Conservation of Charges
d)
Newton's First Law
15.
The current has only has one loop to flow through in this circuit.
a)
Series Circuit
b)
Parallel Circuit
16.
This circuit contains two or more branches for current to move through.
a)
Series Circuit
b)
Parallel Circuit
17.
What is Electric Power?
a)
A. The rate that an appliance converts energy to another appliance
b)
B. A series circuit
c)
C. A parallel circuit
18.
A circuit with more than one path for energy to travel on is?×
a)
A. Series circuit
b)
B. Parallel circuit
c)
C. Ohm's Law
d)
D. Power=Voltage × Current
19.
What is an Electric Current?
a)
A. An Electric Field
b)
B. An Ampere
c)
C. The flow of electric charge.
20.
The flow/movement of electric charges
a)
Voltage
b)
Resistance
c)
Current
d)
Circuit
21.
This is related to the force that causes electric charges to flow
a)
Voltage
b)
Current
c)
Resistance
d)
Circuit
22.
A closed path that electric current follows
a)
Voltage
b)
Current
c)
Resistance
d)
Circuit
23.
The tendency for a material to oppose the flow of electrons, changing electrical energy into thermal energy and light.
a)
Voltage
b)
Current
c)
Resistance
d)
Circuit
24.
According to this law, the current in a circuit equals the voltage difference divided by the resistance.
a)
Law of Conservation of Energy
b)
Ohm's Law
c)
Law of Conservation of Charges
d)
Newton's First Law
25.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
26.
Does this diagram represent a complete or incomplete circuit?
a)
Complete
b)
Incomplete
27.
Which type of circuit has multiple paths (loops) for the electrons to flow?
a)
series circuit
b)
parallel circuit
28.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
29.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
30.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
31.
The purpose of a switch is to:
a)
carry electricity
b)
turn the circuit on and off
c)
provide energy
d)
create sound
32.
The purpose of wires are to:
a)
carry electricity
b)
turn the circuit on and off
c)
provide energy
d)
create sound
33.
In a circuit, energy flows out of the negative side of the battery.
a)
True
b)
False
34.
In a circuit, energy flows out of the positive side of the battery.
a)
True
b)
False
35.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
36.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
37.
What type of circuit will have dimmer bulbs because the energy is shared equally among the bulbs?
a)
series circuit
b)
parallel circuit
38.
Which type of circuit will have brighter bulbs because each one has it's own path to the energy source?
a)
series circuit
b)
parallel circuit
39.
Which of the following is an example of an energy source?
a)
wire
b)
buzzer
c)
battery
d)
switch
40.
What part of a circuit is the image?
a)
electrical conductor
b)
switch
c)
energy source
d)
load (resistor)
41.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
42.
Does this diagram represent a complete or incomplete circuit?
a)
complete
b)
incomplete
43.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
44.
Does this diagram represent a complete or incomplete circuit?
a)
complete
b)
incomplete
45.
Does this diagram represent a complete or incomplete circuit?
a)
complete
b)
incomplete
46.
Does this diagram represent a complete or incomplete circuit?
a)
complete
b)
incomplete
47.
Does this diagram represent a complete or incomplete circuit?
a)
complete
b)
incomplete
48.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
49.
Does this diagram represent a complete or incomplete circuit?
a)
complete
b)
incomplete
50.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
51.
What part of the circuit is this object?
a)
switch
b)
electrical conductor
c)
load (resistor)
d)
energy source
52.
What part of a circuit is this object?
a)
energy source
b)
load (resistor)
c)
electrical conductor
d)
switch
53.
What part of a circuit is this object?
a)
energy source
b)
load (resistor)
c)
electrical conductor
d)
switch
54.
Which circuit will have the brightest bulbs when the switch is closed?
a)
Circuit A
b)
Circuit B
c)
Circuit C
d)
All will have the same brightness.
55.
Which circuit is a series circuit?
a)
Circuit A
b)
Circuit B
c)
Both Circuits A and B
d)
Neither Circuits A nor B
56.
A 20-volt relay has a coil resistance of 200 ohms. How much current does it draw? V=IR, P=IV
a)
0.10 A
b)
10 A
c)
400 A
d)
4000 A
57.
The number of electrons flowing is called _____.
a)
voltage.
b)
power.
c)
current.
d)
resistance.
58.
Circuits in homes are usually wired in
a)
series.
b)
parallel.
c)
aluminum wire.
d)
series with a fuse.
59.
Which of the following provides electrical safety?
a)
fuses
b)
circuit breakers
c)
ground-fault interupters
d)
all of these
60.
Resistance is affected by a material’s
a)
temperature.
b)
thickness.
c)
length.
d)
all of these.
61.
In a parallel circuit if one light bulb goes OUT; then they ALL go out. TRUE OR FALSE?
a)
TRUE
b)
FALSE
62.
What is electric current?
a)
The number of charged particles that pass a point each second
b)
The difference in potential
c)
The resistance
d)
Light Emitting Diode
63.
What is voltage?
a)
The difference in potential energy of the charged particles
b)
The number of charged particles that pass a point each second
c)
The flow of protons
d)
A type of dog from Central Asia
64.
In a Series circuit the more light bulbs you add the brighter they get
a)
False
b)
True
65.
True or False: If the electrical current is very high, this must mean that resistance is low.
a)
True
b)
False
66.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
a)
10 volts
b)
1 volt
c)
48 volts
d)
5 volts
67.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
68.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
69.
12 Volt battery with two resistors in series 3 Ohms & 4 Ohms what would the current draw be
a)
2.1
b)
1.71 Amps
c)
2.4 Amps
d)
15 Amps
70.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
71.
What size resistor would produce a current flow of 5 Amps with a battery voltage of 12.6 volts
a)
60 Ohms
b)
2.52 Ohms
c)
1.71 ohms
d)
5.04 Ohms
72.
With the engine running the charging system produces 14.5 Volts what would the current flow be if a resistance of 6 Ohms was present
a)
2.41 Ohms
b)
2.52 Ohms
c)
2.1 Ohms
d)
0.3333 Ohms
73.
What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts
a)
15 Ohms
b)
4 Ohms
c)
0.3333 Ohms
d)
2 Ohms
74.
A HID lighting circuit operates at 75 Volts what is the circuit current flow if the resistance is 5 Ohms
a)
375 Amps
b)
30 Amps
c)
15 Amps
d)
1.33 Amps
75.
A Charging system producing 14.5 Volts with a current flow of 43.5 Amps, what is the circuit resistance
a)
58 Amps
b)
0.33 Amps
c)
13 Amps
d)
1 Amp
76.
What size resistor would produce a current flow of 5 Amps with a battery voltage of 12.6 volts
a)
60 Ohms
b)
2.52 Ohms
c)
1.71 ohms
d)
5.04 Ohms
77.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
78.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
79.
What kind of circuit is this?
a)
parallel
b)
series
c)
open
d)
chris barton
80.
what kind of circuit is this?
a)
parallel
b)
series
c)
chris barton
d)
open
81.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
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